CN206984126U - Body structure and vehicle - Google Patents

Abstract

The present disclosure relates to a vehicle body structure and a vehicle. The vehicle body structure includes a front longitudinal beam (100) and a front compartment bracket (200), the front compartment bracket (100) includes a left front longitudinal beam and a right front longitudinal beam arranged at intervals along the left and right directions, and the front compartment bracket (200) passes through The connection structure is connected between the left front side beam and the right front side beam, and a plurality of the connection structures are sequentially arranged at intervals along the front and rear direction of the vehicle body structure, and the front side beam (100) is formed with a first A weakened area (101), the first weakened area (101) is arranged between two adjacent connecting structures along the front-to-back direction, and the two front-to-back structures adjacent to the first weakened area (101) The strength of at least one of the connection structures is smaller than the strength of the first weakened area (101). The vehicle body structure can optimize the arrangement and use of the energy-absorbing space at the front of the vehicle, slow down the impact of the collision on the rear structure of the vehicle, and protect the safety of the occupants.

Description

Body Structure and Vehicle

technical field

The present disclosure relates to the technical field of vehicles, in particular, to a vehicle body structure and a vehicle with the vehicle body structure.

Background technique

With the popularization of domestic passenger cars in the global market, the shortage of petrochemical energy and the environmental problems caused by combustion are becoming more and more serious. All countries are actively developing new energy vehicles. As a direction of new energy vehicles, electric vehicles are becoming a future trend. In addition to meeting the traditional design, the design of electric vehicles also needs to consider designing a higher mileage to meet the competitiveness with traditional fuel vehicles. In order to increase the cruising distance, electric vehicles need to be equipped with more energy storage batteries. For fuel vehicles with the same specifications, electric vehicles will greatly increase the weight of the vehicle, which leads to an increase in the kinetic energy of the vehicle at the initial stage of collision under the same test conditions. That is to say, the body structure of the electric vehicle needs to be able to bear larger force and absorb more motion energy to improve safety.

In traditional fuel vehicles, in order to improve the collision safety performance of the vehicle, the front structure of the vehicle body has the characteristics of plastic crushing and bending deformation, so as to absorb the collision energy through its structural deformation and reduce the impact of the collision on the rear structure of the vehicle body and the occupants. However, in electric vehicles, due to the need to arrange electric vehicle-specific brackets for installing related components in the front of the vehicle, the strength distribution in the front of the vehicle will be changed, resulting in a reduction in the effective crushing space. A new body structure technology that can arrange batteries and meet vehicle safety is imperative.

Utility model content

An object of the present disclosure is to provide a vehicle body structure and a vehicle having the same.

In order to achieve the above object, the present disclosure provides a vehicle body structure, including a front longitudinal beam and a front compartment bracket, the front longitudinal beam includes a left front longitudinal beam and a right front longitudinal beam arranged at intervals along the left and right directions, and the front compartment bracket is connected through a connecting structure Connected between the left front side beam and the right front side beam, a plurality of connection structures are sequentially arranged at intervals along the front and rear direction of the vehicle body structure, a first weakened area is formed on the front side beam, and the The first weakened area is disposed between two adjacent connection structures along the front-rear direction, and at least one of the two adjacent connection structures adjacent to the first weakened area has a strength smaller than that of the first weakened area. The strength of a weakened zone.

Optionally, the front compartment bracket includes a first bracket and a second bracket arranged at intervals along the front-rear direction, and a third bracket is connected between the two brackets, and the connection structure includes installing the first bracket The first connection structure at both ends and the second connection structure at both ends of the second bracket are installed.

Optionally, an electrical control installation area is arranged on the front cabin bracket.

Optionally, the strength of the position of the front side member corresponding to the connection structure is higher than the strength of the first weakened area.

Optionally, the connection structure includes fastening holes respectively provided on the front cabin support and the front longitudinal beam, and fastening holes passing through the fastening holes to fix the front cabin support and the front longitudinal beam. The strength of the fastener, at least one of the fastener and the fastening hole is less than the strength of the first weakened region.

Optionally, the fastener is a bolt, and a weakening groove between the front cabin bracket and the corresponding front longitudinal beam is opened on the peripheral wall of the bolt.

Optionally, the connecting structure includes a mounting plate arranged on the front longitudinal beam, the mounting plate is in the shape of a font along the front-rear direction, and the front and rear ends of the mounting plate are fixed to the The top of the front longitudinal beam, the connection structure also includes a connection plate fixed at the end of the front cabin bracket, the connection plate rides on the top wall of the azimuth-shaped structure, and the fastening hole includes a set The first fastening hole on the top wall of the zigzag structure, and the second fastening hole arranged on the connecting plate and aligned with the first fastening hole, the fasteners pass through Through the first fastening hole and the second fastening hole to fix the front cabin bracket and the front longitudinal beam.

Optionally, the first fastening hole and the second fastening hole are respectively located on the front and rear sides of the front compartment bracket and correspond to each other, and the front and rear two of the front compartment bracket are respectively provided with The limiting seat on the second fastening hole, the fastener is embedded in the limiting seat and inserted into the second fastening hole and the first fastening hole in sequence, and the limiting seat The top wall is flush with the top wall of the front cabin bracket.

Optionally, the fastening hole is a long hole extending in the front-rear direction, and a limiting protrusion is formed on the inner wall of the long hole to stop the fastener from moving along the long hole. The strength of the limiting protrusion is smaller than the strength of the first weakened area.

Optionally, a front mounting seat of a front subframe is provided on the front longitudinal beam, and the frontmost connection structure among the plurality of connecting structures is located directly above the front mounting seat of the front subframe.

Optionally, a second weakened area located in front of the plurality of connection structures is formed on the front side member, and the strength of the second weakened area is not greater than the strength of the first weakened area.

Optionally, the second weakened area is covered with a front sealing plate, and the front sealing plate and the front longitudinal beam form a closed structure, and the front sealing plate is formed with Weakened zone of collapse.

Optionally, a reinforcement area located behind the plurality of connection structures is also formed on the front side beam, and the reinforcement area includes a reinforcement plate that is attached to the contour of the front side beam.

Optionally, the reinforcing plate includes a first reinforcing plate extending backward from a position of the front longitudinal beam corresponding to the last connecting structure, and is spaced from the first reinforcing plate and extends from the rear end of the front longitudinal beam. A second reinforcing plate extending forward.

On the basis of the above technical solution, the present disclosure further provides a vehicle, the vehicle includes the vehicle body structure provided in the present disclosure.

Through the above technical solution, when the vehicle body structure provided by the present disclosure is applied to a vehicle, such as an electric vehicle, the front cabin bracket is installed between the left front longitudinal beam and the right front longitudinal beam through the connecting structure when the vehicle is in normal use, which can effectively utilize the body structure The front space optimizes the layout of new energy hardware and other accessories, and multiple connection structures help to maintain the connection stability of the front cabin bracket and prevent the front cabin bracket from falling off due to factors such as driving vibration; when a front collision accident occurs, At least one of the connection structures adjacent to the first weakened zone can be deformed prior to the first weakened zone, so as to timely destroy the connection relationship between the front cabin cross beam and the front longitudinal beam, and avoid forming a rigid support between the front longitudinal beams and causing the front The first weakened area of the longitudinal beam cannot deform and absorb energy, causing a large amount of collision impact to be transmitted to the rear of the vehicle and threatening the safety of the occupants.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the description, together with the following specific embodiments, are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the attached picture:

FIG. 1 is a perspective view of a vehicle body structure provided by an exemplary embodiment of the present disclosure;

2 is a side view of a vehicle body structure provided by an exemplary embodiment of the present disclosure;

Fig. 3 is a partial enlarged view of position A in Fig. 2;

FIG. 4 is an enlarged view of a bolt 300 in a vehicle body structure provided by an exemplary embodiment of the present disclosure;

Fig. 5 is a schematic cross-sectional view of an embodiment of a fastening hole in a vehicle body structure provided by an exemplary embodiment of the present disclosure;

Fig. 6 is a schematic partial top view of a vehicle body structure provided by an exemplary embodiment of the present disclosure;

Fig. 7 is a partial enlarged view of position B in Fig. 6;

FIG. 8 is a perspective view of a front side member 100 in a vehicle body structure provided by an exemplary embodiment of the present disclosure.

detailed description

Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

In the present disclosure, unless stated otherwise, the orientation words used such as "up, down, left, right, front, and rear" are defined based on the up-down direction, left-right direction, and front-rear direction of the vehicle, Specifically, in the accompanying drawings, the X direction is the front and rear direction of the vehicle, wherein the side pointed by the arrow is "front", and vice versa is "rear"; the Y direction is the left and right direction of the vehicle, and the side pointed by the arrow is "right". ", otherwise it is "left"; the Z direction is the up and down direction of the vehicle, where the side pointed by the arrow is "up" and the opposite is "down". In the present disclosure, "beam" refers to a beam extending along the left-right direction of the vehicle, and "longitudinal beam" refers to a beam extending along the front-rear direction of the vehicle. The above definitions are only used to assist in explaining the present disclosure, and should not be construed as limitations.

As shown in FIGS. 1 to 8 , an exemplary embodiment of the present disclosure provides a vehicle body structure, including a front longitudinal member 100 and a front compartment bracket 200 , the front longitudinal member 100 includes a left front longitudinal member and a right front For the longitudinal beam, the front cabin bracket 200 is connected between the left front longitudinal beam and the right front longitudinal beam through a connecting structure, and a plurality of connecting structures are arranged at intervals along the front and rear directions of the vehicle body structure, and a first weakened area 101 is formed on the front longitudinal beam 100 , For deformation and energy absorption during a collision, the first weakened area 101 is arranged between two adjacent connection structures along the front-to-back direction, and at least one of the two front-to-back connection structures adjacent to the first weakened area 101 The strength of is less than the strength of the first weakened zone 101.

The electric control installation area is arranged on the front cabin bracket 200, and is installed between the left front longitudinal beam and the right front longitudinal beam through the connecting structure, so that the space in the front part of the vehicle body structure can be effectively used, and the layout of new energy hardware and other accessories can be optimized. For example, it is used to install electric controls, boost DC, etc.

When the body structure is applied to a vehicle, such as an electric vehicle, under normal use of the vehicle, multiple connection structures help to maintain the connection stability of the front cabin bracket 200 and prevent the front cabin bracket 200 from falling off due to factors such as driving vibration; When an accident occurs, at least one of the connecting structures adjacent to the first weakened zone 101 can be deformed prior to the first weakened zone 101, so as to timely destroy the connection relationship between the front cabin beam and the front longitudinal beam 100, and avoid damage to the front longitudinal beam. The rigid support formed between 100 makes the first weakened area 101 of the front side member 100 unable to deform and absorb energy, causing a large amount of collision impact to be transmitted to the passenger compartment and battery pack at the rear of the vehicle, threatening the safety of the occupants.

In this embodiment, the front cabin bracket 200 includes a first bracket 201 and a second bracket 202 arranged at intervals along the front-to-back direction, and a third bracket 203 is connected between the two brackets. The first connection structure at the end and the second connection structure at the two ends of the second bracket 202 are installed, that is, the first bracket 201 and the second bracket 202 form a closed-loop frame structure with the front longitudinal beam 100 through the connection structure, referring to Fig. 1, so that This part has good stability and can adapt to the normal working conditions of the vehicle. In the event of a collision, because the corner connection of the closed-loop frame structure, that is, the strength of the connection structure is low, the frame structure can be destroyed in time. Thereby ensuring that the first weakened zone 101 can continue to collapse and absorb energy, and the strength of the position corresponding to the connecting structure of the front longitudinal beam 100 is higher than that of the first weakened zone 101, so that the connecting structure, the first weakened zone 101, and the front longitudinal beam The position corresponding to the connection structure 100 is sequentially deformed to absorb energy and weaken the impact of the collision on the rear of the vehicle.

The front compartment bracket 200 may be connected to the front longitudinal beam 100 in any appropriate manner, such as riveting, screwing and other forms. Specifically, in the embodiment shown in FIGS. 2 to 4 , the connection structure includes fastening holes respectively provided on the front cabin bracket 200 and the front longitudinal beam 100 and passing through the fastening holes to fix the front cabin bracket 200 and the front side beam 100 . Fasteners for stringer 100 . Wherein, the strength of at least one of the fastener and the fastening hole is smaller than that of the first weakened zone 101 so as to be able to deform prior to the first weakened zone 101 . In detail, the fastener can be formed as a bolt 300. In order to ensure that the strength of the bolt 300 is lower than the strength of the first weakened area 101, an opening between the front cabin bracket 200 and the corresponding front longitudinal beam 100 is opened on the outer peripheral wall of the bolt 300. The weakening groove 301 ( FIG. 4 ) is provided so that when a collision occurs, the bolt 300 can be deformed or broken due to the shear force between the front compartment bracket 200 and the corresponding front longitudinal beam 100 .

In order to avoid deformation of the front longitudinal beam 100 at the position of the fastening hole during a collision, as shown in Figure 2 and Figure 3, the connection structure includes a mounting plate 110 arranged on the front longitudinal beam 100, and the mounting plate 110 is several along the front-rear direction. font structure, in order to assemble fasteners, the front and rear ends of the mounting plate 110 are spaced and fixed on the top of the front longitudinal beam 100 along the front and rear directions, and the connecting structure also includes a connecting plate 210 fixed on the end of the front cabin bracket 200. The connecting plate 210 rides on the top wall of the several-shaped structure, and the fastening hole includes a first fastening hole 110A arranged on the top wall of the several-shaped structure, and is arranged on the connecting plate 210 and is connected with the first fastening hole 110A. The holes 110A are aligned with the second fastening holes 210A, and fasteners pass through the first fastening holes 110A and the second fastening holes 210A to fix the front compartment bracket 200 and the front side member 100 .

Alternatively, as shown in FIG. 5 , the fastening hole can be formed as a long hole extending in the front-to-back direction, and the inner wall of the long hole is formed with a limiting protrusion 103 for locking the fastener moving along the long hole. The strength of the limiting protrusion 103 is less than the strength of the first weakened area 101, so the limiting protrusion 103 is deformed during a collision, so that the fastener can slip off from the fastening hole, so that the gap between the front compartment bracket 200 and the front side member 100 is The connection relationship of is loose, so that the deformation of the first weakened zone 101 is not restricted.

As shown in FIG. 6 , the first fastening hole 110A and the second fastening hole 210A are respectively located on the front and rear sides of the front cabin bracket 200 and correspond to each other. The limit seat 204 on the second fastening hole 210A is used to guide the fastener during the assembly process, the fastener is embedded in the limit seat 204 and inserted into the second fastening hole 210A and the first fastening hole 110A in sequence, and The top wall of the limit seat 204 is flush with the top wall of the front cabin bracket 200, so as to keep the vehicle body compact and beautiful.

In this embodiment, as shown in FIG. 1 , the front longitudinal beam 100 is provided with a front mounting seat 104 of the front subframe, and the most forward connection structure among the plurality of connection structures is located directly above the front mounting seat 104 of the front subframe. , so that the front cabin bracket 200 does not occupy other energy-absorbing spaces at the front of the vehicle.

In order to further optimize the effect of the collapse and energy absorption of the front longitudinal beam 100, the deformation of the front longitudinal beam 100 mainly occurs in the front section and the middle section, as shown in Fig. 6 to Fig. The strength of the second weakened region 102 is no greater than the strength of the first weakened region 101. Therefore, during a collision, the second weakened area 102 can take the lead in deforming and absorbing energy or at least deform synchronously with the first weakened area 101, so that the collision energy can be consumed in the front section of the front side member 100 as much as possible to protect the occupants and the battery at the rear of the vehicle. Bag. The structure and form of the first weakened region 101 and the second weakened region 102 are not specifically limited in the present disclosure, for example, they may be structures such as concave points and weakened ribs commonly used in the field.

Specifically, the second weakened area 102 is covered with a front sealing plate 105 to adapt to the overall structure of the vehicle body. The front sealing plate 105 and the front longitudinal beam 100 form a closed structure. And the weakened zone that can collapse at the same time to increase the deformation and energy-absorbing structure of the front of the vehicle.

The front side beam 100 is also formed with a reinforcement area located behind the plurality of connection structures, so that the rear section of the front side beam 100 has sufficient strength to prevent the rear section of the front side beam 100 from bending and squeezing the passenger compartment due to collision. The reinforcement area can be formed as a reinforcement plate 106 that is fitted to the contour of the front longitudinal beam 100. Specifically, referring to the embodiment shown in FIG. The first reinforcing plate 106A and the second reinforcing plate 106B are spaced apart from the first reinforcing plate 106A and extend forward from the rear end of the front side member 100 . In an alternative embodiment, methods such as welding sheet metal, filling CBS composite reinforcing material, or increasing the material thickness of the rear section of the front longitudinal beam 100 may also be used.

On the basis of the above technical solution, the present disclosure also provides a vehicle, which includes the vehicle body structure provided by the present disclosure. Therefore, the vehicle has all the advantages and beneficial effects of the vehicle body structure provided by the present disclosure. In order to reduce unnecessary repetition , which will not be repeated here. In particular, the vehicle may be an electric vehicle such that the body structure is adapted to the installation of electrical controls.

The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.

In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner if there is no contradiction. The combination method will not be described separately.

In addition, various implementations of the present disclosure can be combined arbitrarily, as long as they do not violate the idea of the present disclosure, they should also be regarded as the content disclosed in the present disclosure.

Claims (15)

1. A vehicle body structure, characterized in that it comprises a front longitudinal beam (100) and a front cabin bracket (200), and the front longitudinal beam (100) comprises a left front longitudinal beam and a right front longitudinal beam arranged at intervals along the left-right direction, so The front compartment bracket (200) is connected between the left front longitudinal beam and the right front longitudinal beam through a connecting structure, and a plurality of connecting structures are arranged at intervals along the front and rear direction of the vehicle body structure, and the front longitudinal beam (100) is formed with a first weakened area (101), and the first weakened area (101) is arranged between two adjacent connecting structures along the front-rear direction, and is connected to the first weakened area ( 101) The strength of at least one of the adjacent two connection structures is smaller than the strength of the first weakened area (101). 2. The vehicle body structure according to claim 1, characterized in that, the front cabin bracket (200) comprises a first bracket (201) and a second bracket (202) arranged at intervals along the front-rear direction, the two A third bracket (203) is also connected between the brackets, and the connection structure includes a first connection structure for installing both ends of the first bracket (201) and a second connection structure for installing both ends of the second bracket (202). 3. The vehicle body structure according to claim 1, characterized in that an electric control installation area is arranged on the front cabin bracket (200). 4. The vehicle body structure according to claim 1, characterized in that the strength of the position of the front longitudinal beam (100) corresponding to the connecting structure is higher than the strength of the first weakened area (101). 5. The vehicle body structure according to claim 1, characterized in that, the connecting structure comprises fastening holes respectively arranged on the front compartment bracket (200) and the front longitudinal beam (100) and passing through the The fastening holes are used to fix the fasteners of the front cabin bracket (200) and the front longitudinal beam (100), and the strength of at least one of the fasteners and the fastening holes is smaller than that of the first A strength of the weakened zone (101). 6. The vehicle body structure according to claim 5, characterized in that, the fasteners are bolts (300), and the outer peripheral walls of the bolts (300) are provided with the front compartment bracket (200) and the corresponding Weakening grooves (301) between the front side members (100). 7. The vehicle body structure according to claim 5, characterized in that, the connection structure comprises a mounting plate (110) arranged on the front longitudinal beam (100), and the mounting plate (110) is arranged along the front-rear direction A few-shaped structure, the front and rear ends of the mounting plate (110) are fixed to the top of the front longitudinal beam (100) at intervals along the front and rear direction, and the connection structure also includes fixing on the front compartment bracket (200) The connecting plate (210) at the end, the connecting plate (210) rides on the top wall of the several-shaped structure, and the fastening hole includes a first hole arranged on the top wall of the several-shaped structure a fastening hole (110A), and a second fastening hole (210A) arranged on the connecting plate (210) and aligned with the first fastening hole (110A), through which the fastener passes The first fastening hole (110A) and the second fastening hole (210A) are used to fix the front cabin bracket (200) and the front longitudinal beam (100). 8. The vehicle body structure according to claim 7, characterized in that, the first fastening hole (110A) and the second fastening hole (210A) are respectively located on the front and rear sides of the front cabin bracket (200). Two and one-to-one correspondence, the front and rear two of the front cabin bracket (200) are respectively provided with a limit seat (204) covering the second fastening hole (210A), and the fastener is embedded in the In the limiting seat (204) and inserted into the second fastening hole (210A) and the first fastening hole (110A) in sequence, and the top wall of the limiting seat (204) is in contact with the front cabin bracket The top wall of (200) is flush. 9 . The vehicle body structure according to claim 5 , wherein the fastening hole is a long hole extending in the front-rear direction, and the inner wall of the long hole is formed to lock the fastener along the The limit protrusion (103) for the movement of the elongated hole, the strength of the limit protrusion (103) is smaller than the strength of the first weakened area (101). 10. The vehicle body structure according to claim 1, characterized in that, the front longitudinal beam (100) is provided with a front mounting seat (104) for the front subframe, and the frontmost connection structure among the plurality of connection structures Located directly above the front mounting seat (104) of the front subframe. 11. The vehicle body structure according to claim 1, characterized in that, a second weakened area (102) located in front of a plurality of connecting structures is formed on the front longitudinal beam (100), and the second weakened area (102 ) is not greater than the strength of the first weakened zone (101). 12. The vehicle body structure according to claim 11, characterized in that, the second weakened area (102) is covered with a front sealing plate (105), and the front sealing plate (105) and the front longitudinal beam (100 ) to form a closed structure, and a weakened area corresponding to the second weakened area (102) and capable of collapsing simultaneously is formed on the front sealing plate (105). 13. The vehicle body structure according to claim 1, characterized in that, the front longitudinal beam (100) is also formed with a reinforcement area located behind the plurality of connection structures, the reinforcement area includes A reinforcing plate (106) provided on the profile of the front longitudinal beam (100). 14. The vehicle body structure according to claim 13, characterized in that the reinforcing plate (106) comprises a first reinforcement extending rearward from a position of the front side member (100) corresponding to the last connecting structure A plate (106A) and a second reinforcing plate (106B) arranged at intervals from the first reinforcing plate (106A) and extending forward from the rear end of the front longitudinal beam (100). 15. A vehicle, characterized in that the vehicle comprises the vehicle body structure according to any one of claims 1-14.